Fixing Toshiba Regza 37" LCD TV

[selldoor]

Re: Fixing Toshiba Regza 37" LCD TV

Seems like a problem with the inverter or bulbs/wiring but may not be.

When the set is on test the voltage on the small white fuse on the inverter board with respect to ground.
When it goes off do the same.
Is there any flickering just before it goes off?

Also when it is on try heating the inverter board with a hairdryer to see if it goes
off quicker. If not try the hairdryer on other boards (looking for a bad solder connection}

[ABuNeNe]

Re: Fixing Toshiba Regza 37" LCD TV

Hi,

The power connector is in the middle bottom, looking at the photo.
Pins 1 to 5 are +24V / pins 6 to 10 -24V and pin 12 is inverter On or Off.
The connectors from the top are the outputs to the CCFL lamps. Be careful, there is a high voltage on those connectors (> 1000 V)

Thanks for your reply.

So I put my multimeter's red probe on either one of the pins 1-5 and the black probe on either one of the pins 6-10?

[addytzu123]

Re: Fixing Toshiba Regza 37" LCD TV

Hi,

The power connector is in the middle bottom, looking at the photo.
Pins 1 to 5 are +24V / pins 6 to 10 -24V and pin 12 is inverter On or Off.
The connectors from the top are the outputs to the CCFL lamps. Be careful, there is a high voltage on those connectors (> 1000 V)

[ABuNeNe]

Re: Fixing Toshiba Regza 37" LCD TV

OK, check that the 24V to the inverter board(s) is present and steady.

Hi I found out the inverter board I'm using is this, 6632L-0541A.



I can see there are only 2 connectors connected to this inverter board, top left hand corner and middle bottom. Am I correct to say the power connector is the top left hand corner? Is yes, I unplugged the cable and there's only 1 blue wire running inside, any idea how can I measure the 24V?

[tom66]

Re: Fixing Toshiba Regza 37" LCD TV

OK, check that the 24V to the inverter board(s) is present and steady.

[ABuNeNe]

Re: Fixing Toshiba Regza 37" LCD TV

Do you have a digital multimeter available?

Yes, I've this cheap multimeter.

[tom66]

Re: Fixing Toshiba Regza 37" LCD TV

Do you have a digital multimeter available?

[ABuNeNe]

Hi I got this Toshiba Regza 37" LCD TV, model is 37AV550E.

It work fine for about 30 mins and after that the picture will goes blank with the audio will playing. I shined a torch light and can see the picture moving.

I opened the back and found no bulging capacitors on the power supply, main and the inverter boards.

Is this the problem with the inverter or the t-con board?

Also does anyone know which remote control can work on this TV?